Saucy Stuffed Zucchini

Like many people I know, I've had an overabundance of zucchini in my garden. I created this recipe to use up some of my bounty. My husband often shies away from vegetable dishes, but he declared this one a winner! —Barbara Edgington, Frankfort, Ohio

In a saucepan, melt butter; whisk in flour and salt until smooth. Gradually add milk. Bring to a boil. Cook and stir for 2 minutes or until thickened and bubbly. Remove from the heat. Add 1/4 cup Parmesan cheese and mustard.

Pour over zucchini. Sprinkle with remaining Parmesan. Bake, uncovered, at 350° for 25-30 minutes or until heated through.